Former Disney Star To Rihanna: ‘Chris Brown Beat You Because You’re Not Pretty Enough’

Former Disney star and current DUI Queen Amanda Bynes, 27, spontaneously attacked singer Rihanna, 25, on Twitter, criticizing her appearance and mocking her assault at the hands of on again-off again flame Chris Brown, reports the Daily Mail.com.

Bynes began her tirade after Rihanna tweeted a picture with the words: “Look who came to see me!! My lover Stella McCartney!!!”

Bynes responded: ”No one wants to be your lover so you call everyone and their mother that I almost named my new dog Rihanna.”

After that initial exchange, Bynes went on to accuse Rihanna of “trying to be white,” being “fugly” in person and needing to go to rehab.

The embattled star erased the tweets but the Daily Mail has the screen-caps.

That last tweet was in response to Rihanna making fun of the Bynes’ well-documented descent into drugs:

Though no reference was made to Rihanna’s former lover, rapper Drake, it is assumed that Bynes is upset about their rekindled friendship. The “All That” actress famously tweeted that she wanted the Canadian crooner to “murder her vagina.”

Bynes recently appeared in court to respond to charges that she threw a bong from her Midtown Manhattan apartment window. She claims the charges are false and that she was actually sexually assaulted by police:

“I was sexually harassed by one of the cops the night before last which is who then arrested me. He lied and said I threw a bong out the window when I opened the window for fresh air. Hilarious. He slapped my vagina. Sexual harassment. Big deal.”

With Bynes continuing to swirl out of control, and Rihanna’s love of Twitter beef, this may drag on for a very long time.